If you search the Wisconsin Historical Name Index, there is a biography for an August F. Schimmelpfennig available (http://www.wisconsinhistory.org/wni/
Schimmelpfennig, August F. (1843 - ) Record # 87509
Location: Oconomowoc township
Title: History of Waukesha county, Wisconsin, page(s) 872
Source Type: Biographical Sketch Portrait: No
Author: Published: 1880
Also, after a google search, I found this website/info:http://www.migrations.org/individual.php3?record=32217
I don't know if this is information you already had. I hope that it helps.